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公开(公告)号：US11320601B2
公开(公告)日：2022-05-03
申请号：US17031392
申请日：2020-09-24
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , John Cheng , Ziliang Cai
Abstract: In general, the present disclosure is directed to locking arrangements for use with optical subassembly housings, such as small form-factor pluggable (SFFP) housings, that include a handle member configured to rotate about the housing to allow a user to select a target/desired orientation. Preferably, the locking arrangement couples to a pluggable housing that is configured to removably couple into a receptacle of an optical transceiver cage or other suitable enclosure. The locking arrangement further includes a handle member rotatably coupled to the pluggable housing, the handle member being configured to allow the pluggable housing to releasably lock within the receptacle. The handle member is also preferably configured to maintain a user-selected orientation such that the handle member remains at a given angle relative to the pluggable housing in the absence of a user-supplied force.
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22.发明授权公开(公告)号：US10989870B2
公开(公告)日：2021-04-27
申请号：US16116087
申请日：2018-08-29
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Kevin Liu , I-Lung Ho
Abstract: In general, a TOSA consistent with the present disclosure includes a light driving circuit coupled to a hermetically-sealed light engine. The hermetically-sealed light engine includes a housing defined by a plurality of sidewalls. The housing defines a cavity that is hermetically-sealed to prevent introduction of contaminants that would otherwise reduce optical power. The hermetically-sealed light engine optically couples to an external arrayed waveguide grating (AWG), or other multiplexing device, by way of an optical receptacle. The optical receptacle can include a waveguide implemented external to the hermetically-sealed cavity and can include, for instance, an optical isolator, fiber stub, and fiber ferrule section. Thus, the external AWG and associated external optical coupling components advantageously allow for the hermetically-sealed light engine to have a cavity with dimensions relatively smaller than other approaches that dispose an AWG and associated components within a hermetically-sealed cavity.
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公开(公告)号：US10928600B2
公开(公告)日：2021-02-23
申请号：US16664202
申请日：2019-10-25
Applicant: Applied Optoelectronics, Inc.
Inventor： Kevin Liu , Kai-Sheng Lin , Ziliang Cai
Abstract: The present disclosure is generally directed to a multi-channel TOSA arrangement with a housing that utilizes a feedthrough device with at least one integrated mounting surface to reduce the overall dimensions of the housing. The housing includes a plurality of sidewalls that define a hermetically-sealed cavity therebetween. The feedthrough device includes a first end disposed in the hermetically-sealed cavity of the housing and a second end extending from the cavity away from the housing. The feedthrough device provides the at least one integrated mounting surface proximate the first end within the hermetically-sealed cavity. At least a first laser diode driver (LDD) chip mounts to the at least one integrated mounting surface of the feedthrough device. A plurality of laser arrangements are also disposed in the hermetically-sealed cavity proximate the first LDD chip and mount to, for instance, a LD submount supported by a thermoelectric cooler.
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公开(公告)号：US10884201B2
公开(公告)日：2021-01-05
申请号：US16053398
申请日：2018-08-02
Applicant: Applied Optoelectronics, Inc.
Inventor： Kevin Liu , Kai-Sheng Lin , Hao-Chiang Cheng
Abstract: The present disclosure is generally directed to an on-board ROSA arrangement where a fiber receptacle element, optical components such as optical de-multiplexer (e.g., an arrayed waveguide grating (AWG)), turning mirror, photodiodes and light receiving chip are mounted to a common substrate. The fiber receptacle element includes a body that defines a slot to at least partially receive an end of the substrate and mount thereto. The body of the fiber receptacle further includes an aperture that extends through the body to receive an optical fiber and/or associated connector and align the same with ROSA components mounted on a surface of the substrate. The fiber receptacle body may be solid, e.g., formed from a single, monolithic piece of material, and may be manufactured from metal, plastic or other suitably rigid material.
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公开(公告)号：US10833775B1
公开(公告)日：2020-11-10
申请号：US16387816
申请日：2019-04-18
Applicant: Applied Optoelectronics, Inc.
Inventor： Chong Wang , Kai-Sheng Lin , Yongxuan Liang , I-Lung Ho
Abstract: In general, the present disclosure is directed to a transmitter optical subassembly (TOSA) module for use in an optical transceiver or transmitter that includes a magnetically-shielded optical isolator to minimize or otherwise reduce magnetization of TOSA components. An embodiment of the present disclosure includes a TOSA housing with magnetic shielding at least partially surrounding an optical isolator, with the magnetic shielding reflecting associated magnetic energy away from components, such as a metal TOSA housing or components disposed therein, that could become magnetized and adversely impact the magnetic flux density of the magnetic field associated with the optical isolator.
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Patent Agency Ranking
公开(公告)号：US10714890B1
公开(公告)日：2020-07-14
申请号：US16268765
申请日：2019-02-06
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Hsiu-Che Wang , Kevin Liu
Abstract: The present disclosure is generally directed to a multi-channel TOSA with vertically-mounted MPDs to reduce TOSA housing dimensions and improve RF driving signal quality. In more detail, a TOSA housing consistent with the present disclosure includes at least one vertical MPD mounting surface that extends substantially transverse relative to a LD mounting surface, with the result being that a MPD coupled to the vertical MPD mounting surface gets positioned above an associated LD coupled to the LD mounting surface. The vertically-mounted MPD thus makes regions adjacent an LD that would otherwise be utilized to mount an MPD available for patterning of conductive RF traces to provide an RF driving signal to the LD. The conductive RF traces may therefore extend below the vertically-mounted MPD to a location that is proximate the LD to allow for relatively short wire bonds therebetween.
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公开(公告)号：US10608408B1
公开(公告)日：2020-03-31
申请号：US16202854
申请日：2018-11-28
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Ziliang Cai , Chong Wang
Abstract: The present disclosure is generally directed to a laser subassembly for use in a TOSA module that includes an integrated impedance matching network to enable a plurality of selectable resistance configurations to ensure the driving circuit and laser emitter of the TOSA module have matching, or substantially matching, impedances. The laser subassembly includes a substrate with a driving circuit disposed thereon. The driving circuit includes signal conductors for electrically coupling to an external transmit connecting circuit, a conductive laser mounting section, and an impedance matching network. The impedance matching network includes a plurality of resistors, with one or more of the resistors being selectively electrically coupled to the conductive laser mounting section to introduce a selected amount of impedance to minimize or otherwise reduce reflection.
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公开(公告)号：US10230470B2
公开(公告)日：2019-03-12
申请号：US15475082
申请日：2017-03-30
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Yi Wang , Kevin Liu
Abstract: In accordance with an embodiment, a multi-layered flexible printed circuit (FPC) is disclosed that includes two or more insulating layers to route conductive traces carrying radio frequency (RF) signals, e.g., data signals, and conductive traces carrying direct current (DC) signals, e.g., power signals and low-frequency control signals, while sufficiently isolating the RF signals from electrical interference by the DC transmission lines. This advantageously eliminates having two or more separate FPCs to electrically couple each optical subassembly, e.g., receiver optical subassemblies (ROSAs) and transmitter optical subassemblies (TOSAs), to associated circuitry in a transceiver housing, which saves space and reduces manufacturing complexity, for example.
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公开(公告)号：US09891395B2
公开(公告)日：2018-02-13
申请号：US15210193
申请日：2016-07-14
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Hsiu-Che Wang , Yong-Xuan Liang
IPC: G02B6/42 , H04B10/572 , H04B10/40 , G02B6/12 , H04J14/02
CPC classification number: G02B6/4246 , G02B6/00 , G02B6/12016 , G02B6/4249 , G02B6/4262 , G02B6/4292 , H04B10/40 , H04B10/506
Abstract: A multi-channel optical transmitter or transceiver includes an optical multiplexer with input and output ports on a single side. The optical multiplexer receives optical signals at different channel wavelengths on a plurality of mux input ports on one side and combines the optical signals into a multiplexed optical signal, which is output on an optical output port on the same side. The optical multiplexer may be located at a distal end of a transceiver or transmitter housing. In one embodiment, the optical multiplexer is a reversed planar lightwave circuit (PLC) splitter including splitter output ports that are used as the mux input ports and a splitter input port that is used as the mux output port. The mux input ports may be optically coupled to respective transmitter optical subassembly (TOSA) modules with optical fibers.
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30.发明授权公开(公告)号：US11320598B2
公开(公告)日：2022-05-03
申请号：US16693364
申请日：2019-11-24
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Hao-Chiang Cheng , Ziliang Cai
Abstract: The present disclosure is generally directed to an optical demultiplexer for use in an optical transceiver module having a truncated profile/shape to increase tolerance and accommodate adjacent optical components. In more detail, the optical demultiplexer comprises a body with at least one truncated corner at the input end. The at least one truncated corner allows the optical demultiplexer to be disposed/mounted, e.g., directly, on a densely populated transceiver substrate, e.g., a printed circuit board (PBC), and provide additional tolerance/space for mounting of circuitry and/or components within the region that would normally be occupied by corner(s) of the optical demultiplexer body. The at least one truncated corner may be introduced in a post-production step, e.g., via cut & polishing, or introduced during formation of the optical demultiplexer using, for instance, photolithography techniques.
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